The Aaon V38400 Pressure Transducer is an HVAC sensing component designed to measure system pressure within a 0–500 PSI range and convert pressure readings into electrical signals for monitoring and control. It helps the control system track refrigerant or fluid pressure and supports appropriate equipment operation. This transducer is used in compatible AAON commercial rooftop units, ... https://www.partshnc.com/v38400-aaon-transducer-pressure-0-500-no-cabl